7 Simple 2N3904 Circuits for Beginners

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In this article, we have produced 7 simple 2N3904 circuits for electronic enthusiasts. These circuit diagrams are essentially beginner-friendly types. Hope the circuit diagrams are helpful to you.😀

Source: Apogeeweb Semiconductor Electronic

 

2N3904 Circuit

• Circuit 1: Thermostat controller composed of LM75 intelligent temperature sensor and 2N3904 transistor.

• Circuit 2

• Circuit 3

• Circuit 4

• Circuit 5

• Circuit 6: 2N3904 Sample Circuit-Amplifier

• Circuit 7:How to design a 13.56mhz sine wave power amplifier circuit with 2N3904